Removable window-sash



(No Model.) 2 Sheets Sheet 1. J. LEHNBEUTER. REMOVABLE WINDOW SASH.

(No Model.) 2 Sheets-Sheet 2 J. LEHNBEUTER.

REMOVABLE WINDOW SASH- No. 561,800. Paten-tedJune 9, .1896.

t. il

UNITED STATES PATENT Orrien.

JOSEPH LEIINBEUTER, OF ST. LOUIS, MISSOURI.

REMOVABLE WINDOW-SASH.

SPECIFICATION forming part of Letters Patent No. 561,800, dated June 9,1896.

I Application filed September 30, 1895- Serial No. 564,088. (No model.)

To all whont it may concern:

Be it known that I, J'osnrn LEHNBEUTER, of the city of St. Louis, Stateof Missouri, have invented a certain new and useful Improvement inRemovable Window-Sashes, of which the following is a full, clear, andexact description, reference being had to the accompanying drawings,forming part of this specification.

The object of my invention is to provide an arrangement which willpermitof the removing of the window-sash in a manner con venient for cleaningthe window without rendering it necessary for the operator to exposehimself to the danger of standing on the outside sill and which at thesame time will allow the entire window to be opened for the free accessof air when needed.

My invention consists in features of novelty hereinafter fullydescribed, and pointed out in the claims.

Referring to the drawings, Figure I is a vertical longitudinal sectionof the windowframe, showing the sashes open. Fig. II is an enlargedcross-section showing one strip withdrawn from the rabbet and the otherstrip inserted in the rabbet. Fig. III is an enlarged detail view of thefront of the sash, part in section and part in elevation. Fig. IV is avertical longitudinal section through the line IV IV of Fig. III. Fig.V. is a detail view showing the ratchet-and-pawl device for operatingthe strip. Fig. VI is a similar view showing the ratchet-andpawl deviceand also the guide-pins, the strip operated thereon being extended. Fig.VII is a longitudinal section showing the device on which the sash ispivoted when opened. Fig. V III is a transverse section of the same,taken on line VIII VIII, Fig. VII. Fig. IX is a similar view, the sashbeing lowered to the pin forming the pivot and partially open. Fig. X isa detail View showing the manner in which the weighteord is attached tothe sash. Fig. XI is a vertical section taken through the line XI XI,Fig. X. Fig. XII is a'similar view to that shown in Fig. X, exceptingthat the sash is partially open. Fig; XIII is an elevation of the pulleyround which the sash cord or band passes. Fig. XIV is a View similar tothat shown in Fig. XI, a cord being used to suspend the weight insteadof a band or tape.

Fig. XV is a side view of a guiding-pulley to compel the weight-cord toremain upon the pulley. Fig. XVI is an edge view of a modificatio'n inwhich a cord is used to suspend the weight instead of a tape or band.Fig. XVII is an edge view showing the method of attachment to the sash.

The same numbers designate the same or similar parts throughout theseveral figures.

1 represents the window-frame.

2 represents the sash. 3 is a recess in the edge of the said sash toallow openings between the sash and frame for the weight-cord.

The sash and frame may be of any ordi nary construction. Those usuallyfurnished by mills may be used, as my device is adapted to be attachedto any frame.

4 represents a strip of wood attached, as shown, to the front of thesash-stile. 5 is a second strip, having a projection (3, said stripbeing adapted to move back and forth by means of the device to behereinafter described.

7 is the rabbet within the window-frame, into which the strip 5 engagesand which serves as a guide to the sash. 8 are the recesses in the sashinto which the glass is in serted.

Attached to either side of the sash by means of a plate 9 is a devicefor operatin the strip 5. This consists of a crank 10, which operates acog-wheel II. This cogwheel 11 is placed in a recess in the strip I andbeneath the plate 9, Fig. IV. The crank 10 is held in place by means ofa projection 12 on its under side, which is adapted to engage in a sloton an incline 13 on the plate 9.

To the strip 5 are secured pins 16, which are preferably screwed intothe said strip. These pins are placed at an angle and work in holesdrilled in the stationary strip There are ordinarily three such pins toeach strip, the upper and lower ones working in holes 18, furnished witha housing to prevent wear and to make a close fit. The center pin isfurnished with a rack ll, adapted to be operated by the cogwheel 11. Itwill thus be seen that the turning of the crank 9, which is placed onthe outside of the windowsash, will advance or withdraw the pin 15,which, conjointly with the guide-pins 16, will insert or withdraw thestrip 5 into or from the rabbet 7. When the said strip 5 is thuswithdrawn from the rabbet 7 and it is desired to remove the window fromthe frame, the operator first withdraws a pin 20, which is carried in ahousing 19 and placed within the frame 1 near the bottom of the sash. Astop-plate 21 prevents the pin from retreating. At the bottom of thesash is a recess 22, which, when said sash is lowered, engages the pin20, thus forming a pivot upon which the sash revolves. The strips 5being withdrawn from the rabbets 7 the window may be lowered by merelydrawing in the top, revolving it about the pivot-pin 22.

23 is the pulley within the frame over which runs the weight-cord 24:.Its sash end is attached slightly above thecenter of said sash by meansof the following-described device: At the place of attachment the sashis recessed to receive a block 26, secured in place by a plate 2 butwhich is allowed to revolve therein. The weight cord or band is fastenedto the block 26. V

I prefer to construct the cord or band 25 of steel or copper tape; butthe ordinary cord may be used. The method of attaching the sash end ofthe said cord is shown in Figs. X, XI, XII, XIV, and XVII. Aguide-pulley 27, Fig. XV, may be attached just below the main pulley,Fig. XVI, to prevent the cord leaving said pulley.

As the window is revolved about the pivotpin 20 the block 26 will turnin its housing, thereby preventing the twisting or crimping of the bandorcord. The flanges on the pulley 23 will ordinarily prevent any troublethere; but, if desired, the guide-pulley 27 may be used, as described.As the sash is suspended but a trifle above its center scarcely anyeffort will be needed to revolve it. In fact, it will swing of itselfafter the impetus is once given. The pivot-pins 20 may be placed at anypoint in the frame below the sash to enable the sash to be swung at anydesired plane.

Assuming that the window is in its normal position, the device isoperated by first withdrawing the pins 20 and lowering the sash so as toallow its bottom to rest upon said pin. Next the cranks 9 (placed oneither side of the sash) are turned so as to withdraw the strips 5 fromthe position shown in Fig. VI to that shown in Fig. V. The sash is thenrevolved about the pivot-pins 20 and the cords are allowed to leave theperpendicular with out twisting by means of the device by which the sashend is secured. Thus the window may be cleaned on the outside withoutthe operator leaving the room, and in hot weather the entirewindow-space may be opened for the circulation of air.

My device is inexpensive to construct and may be attached withoutdifficulty to any window-frame. It is constructed without springs orintricate mechanism and is therefore very durable.

I claim as my invention- 1. The combination of a movable strip, and ameans of operating same consisting of a cog-wheel secured to the sashand a pin secured to the strip, said pin bearing a rack adapted toengage said cog-wheel, substantially as described.

2. The combination consisting of a statiou ary strip adapted to besecured to the front of the sash-stile, a movable strip adapted toengage the rabbet when advanced, and a means of moving same consistingof a cog-wheel and crank secured to the stationary strip, and a pinbearing a rack carried on the movable strip adapted to engage saidcog-wheehsubstantially as described.

3. The combination consisting of a movable strip, inclined pins securedthereto, a stationary strip provided with sockets to receive said pins,mechanism adapted to move said movable strip, and a pin placed in thewindow-frame adapted to serve as a pivot for the sash, substantially asdescribed.

JOSEPH LEHNBEUTER.

In presence of- W. FINLEY, STANLEY STONER.

